I am trying to set up a flow that posts a message to a particular channel when a form is filled out. The form will specify the channel to post and I want to specify the channel dynamically. I can get it to work if I hard code the channel id, but I want it to post to different channels depending on values in the form.
The image below shows the control. The "Channel id" should be chosen based on a value in the form, the value is the name of the channel, but that will throw an error. Is there a way to dynamically select a channel id here? Is there a specific format or an internal specification or string?
Thanks

